Sat Mar 24 18:40:25 EDT 2007

bidir udp

2 ends / symmetric

socat - UDP4:localhost:11111,sourceport=22222
socat - UDP4:localhost:22222,sourceport=11111

that seems to work ok, now using firewalls

A  FW_A   FW_B  B

using firewall doesnt work.. the thing to know is how ports are
mapped. assuming this is just copied apparently doesnt work.. if it is
known then A -> FW_B and B -> FW_A